Mixing valve VRG132, 3‑way, DN25, KVS 6.3, 1 1/4" external thread. 11602400

Compact brass mixing valve DZR, designed for precise regulation in heating and cooling installations

The 3‑way valve VRG132 is made of brass resistant to dezincification (DZR), ensuring durability in humid and aggressive environments such as heating, cooling, or domestic hot water systems. Its design minimizes internal leakage — not exceeding 0.05 % of the Kvs value — which means stable outlet temperature and no energy waste from mixing unnecessary streams.

External threaded connections (G 1¼") are standard and compatible with most installation pipelines. The working length of each connection is 41 mm, facilitating installation even in confined spaces. A Kvs of 6.3 provides adequate flow for typical heating circuits in single‑family homes and small commercial buildings.

The flow characteristic is linear — i.e., changing the knob position proportionally affects the flow distribution between the ports. This makes it easier to achieve a stable mixed temperature without oscillations. Additionally, the bypass has a quadratic characteristic — it remains stable at low flows and does not cause sudden pressure spikes at higher flows.

The maximum differential pressure in the open position is 1 bar — sufficient for most low‑power circulation pump systems. No additional pressure reducers or safety devices are required in typical installations.

The valve can be operated manually: an anti‑slip knob provides a good grip, and a 90° travel limiter prevents over‑rotation. The position scale is reversible — it can be turned 180° to match the available mounting space.

It works seamlessly with ESBE ARA600 actuators — the coupling between valve and actuator ensures precise and repeatable regulation, which is essential for automated systems that require constant temperature in heating zones.

There are no compression fittings or rotating nuts — it is a pure thread‑on version intended for direct installation in threaded pipelines. The absence of extra components reduces potential leak points and simplifies maintenance.

All dimensions match the manufacturer’s data: connection lengths 1 and 3 are 20.5 mm, connection 2 is 82 mm — corresponding to the standard configuration of a “T”‑type three‑way valve. Conversion to a four‑way valve is not possible.